Hi, On 7/14/16 7:38 PM, Julien Charbon wrote: > On 6/28/16 12:06 PM, Julien Charbon wrote: >> On 12/7/15 4:36 PM, Julien Charbon wrote: >>> On 30/05/14 06:12, k simon wrote: >>>> Does any plan commit and MFC to the 10-stable ? >>> >>> I got a bit of interest of having the performance improvements for >>> short-lived TCP connections in 10-stable. Just to share the current >>> status to a wider audience: >>> >> <snip> >> If nobody complains, I plan to MFC them in stable/10. After actually >> quite a bunch of tests as I see a lot of changes that might impact these >> MFCs (like TFO support, etc.). > > MFC over stable/10 of above commits done and tested here: > > https://github.com/verisign/freebsd/commits/10/tcp-scale > > Nothing particular, the result make stable/10 much closer to -CURRENT > TCP locking-wise.
Only one commit remains to be pushed in stable/10: The INP_INFO global lock decomposition change that brings most of the performance improvement: https://github.com/verisign/freebsd/commits/10/tcp-scale I am going to MFC it in stable/10. This change is well tested in both 10 and 11 now, and will make future TCP changes MFC much easier. Next step for this effort: As soon as we get a RCU-ish list implementation in kernel for example based on: Add ConcurrencyKit support https://reviews.freebsd.org/D7016 We will work on removing all usages of INP_INFO lock in TCP stack. Thanks. -- Julien
signature.asc
Description: OpenPGP digital signature
